Currently there are still at least two functions bundled up inside the
winsys concept:
a) that of a backend resource manager, sometimes capable of performing
present() operations,
b) the initialization code/routine for the whole driver stack.
The inclusion of (b) makes it difficult to share implementations of
(a) between different drivers. For instance, a clean xlib winsys
could be of use for software-rasterized VG, GLES, EGL, etc, stacks.
But that is only true as long as there is no dependency from the
winsys to higher level code, as would be the case when we include (b)
in this component.
This change creates a new gallium/targets subtree, specifically for
implementing the glue needed to build individual driver stacks, and
moves that code out of a single example winsys, namely xlib.
Other drivers continue to build unchanged, but hopefully can migrate
to this structure over time.
With the addition egl_x11_swrast, egl_softpipe is sort of deprecated.
The new driver serves the same purpose as egl_softpipe does. It is
based on egl_g3d and provides more features.
The egl_g3d state tracker has support for KMS, and the support is based
on the egl state tracker. As egl_g3d provides more features, it should
be better to keep only egl_g3d to unify the efforts.
In cd6b8dd9e8, color read/type fields are
moved; Based on 068596c9a7 and
cc020425e9, GLSL builtin library is
autogenerated and GLSL libraries are built and used.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Build demos that require EGL_MESA_screen_surface, and build egl_i915.so
that supports EGL_MESA_screen_surface.
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Brian Paul
Jakob Bornecrantz
Chia-I Wu
Keith Whitwell
Chia-I Wu